National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

54°F

12°C

Humidity 67%
Wind Speed Vrbl 6 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 16 Oct 3:56 am EDT
Extended Forecast for

South Dennis MA

  • Today

    Today: Showers, mainly before 5pm. Patchy fog after 1pm. High near 69. South wind 8 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 69 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: A chance of showers, mainly after 9pm. Patchy fog before 1am. Otherwise, cloudy, with a low around 43. Southwest wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Showers likely, mainly before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 53. North wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. North wind 10 to 13 mph, with gusts as high as 26 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. North wind around 9 mph.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 43. East wind around 5 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: A chance of showers after 3pm. Mostly sunny, with a high near 58. East wind 8 to 13 mph. Chance of precipitation is 30%.

    High: 58 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 46. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. Northeast wind around 14 mph.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Today
Showers, mainly before 5pm. Patchy fog after 1pm. High near 69. South wind 8 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A chance of showers, mainly after 9pm. Patchy fog before 1am. Otherwise, cloudy, with a low around 43. Southwest wind 7 to 13 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, mainly before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 53. North wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Mostly clear, with a low around 38. North wind 10 to 13 mph, with gusts as high as 26 mph.
Sunday
Sunny, with a high near 56. North wind around 9 mph.
Sunday Night
Mostly clear, with a low around 43. East wind around 5 mph.
Monday
A chance of showers after 3pm. Mostly sunny, with a high near 58. East wind 8 to 13 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 46. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 59. Northeast wind around 14 mph.
Tuesday Night
Mostly cloudy, with a low around 46. North wind 9 to 11 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 58. Northeast wind around 16 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 44. Northeast wind 11 to 13 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 57. Northeast wind around 14 mph, with gusts as high as 24 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Dennis MA
 41.69°N 70.16°W (Elev. 7 ft)
Last Update:
2:29 am EDT Oct 16, 2026
Forecast Valid:
4am EDT Oct 16, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation